He said initial investigations involving a CT scan would almost certainly have identified a perforated bowel and the urgent need for surgery.

"I am advised ... that had these steps been promptly taken, Mrs Inches had an approximate 75 per cent chance of surviving her sepsis," Mr Chandler said.

"Regrettably this did not happen and she was denied all prospects of survival."

Mr Chandler repeated a statement he had made in another coronial finding.

"This is another in a series of recent coronial cases investigated by me where a person has died because of a failure to make a timely diagnosis of sepsis," he said.

"This leads me to again remind the medical fraternity that sepsis is a life-threatening condition which is often difficult to diagnose because it can present in multiple circumstances and because of a tendency for its signs to fluctuate.

"Its diagnosis requires close vigilance of the patient's vital signs and an understanding that particular changes or fluctuations in those signs may be explained by sepsis."

Coroner outlines events leading to patient's death

The coroner found Mrs Inches called an ambulance to her New Norfolk home early in the evening of February 5, 2013 and was recorded as having bowel issues but vital signs within "normal limits".

The paramedics left but an hour later Mrs Inches called Ambulance Tasmania again, complaining of abdominal pain, including vomiting and diarrhoea, after eating some chicken.

The paramedics assessed Mrs Inches as very anxious, hyperventilating, having a temperature of 39.6 degrees and rating her level of pain as seven out of 10.

Mrs Inches was taken to the Hobart Private Hospital's emergency department.

Dr Dudgeon ordered blood tests and Mrs Inches was given some medication and intravenous fluid, with Dr Dudgeon suspecting she might have viral gastroenteritis but saying he had not ruled out sepsis.

Later in the evening Dr Dudgeon considered Mrs Inches' blood test results, commenting they were "inconsistent with sepsis".

Because of these results, and Mrs Inches' improved clinical condition, Dr Dudgeon ruled out sepsis and allowed her to be discharged at 1:00am.